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MDEV-26657 : Initialize some fields in create_background_thd()

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Avoid reading uninitialized memory by  thd_get_error_context_description().
Note, that THD::real_id can't be initialized at this stage, so it will be zeroed.
This commit is contained in:
Vladislav Vaintroub
2021-09-21 19:14:07 +02:00
parent 699de65d5e
commit b4074069b2
1 changed files with 3 additions and 0 deletions
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sql/sql_class.cc
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@@ -4922,6 +4922,9 @@ MYSQL_THD create_background_thd()
thd->set_command(COM_DAEMON); thd->set_command(COM_DAEMON);
thd->system_thread= SYSTEM_THREAD_GENERIC; thd->system_thread= SYSTEM_THREAD_GENERIC;
thd->security_ctx->host_or_ip= ""; thd->security_ctx->host_or_ip= "";
thd->real_id= 0;
thd->thread_id= 0;
thd->query_id= 0;
return thd; return thd;
} }